We collected aquatic macroinvertebrate and redband trout (Oncorhynchus mykiss newberrii) diet data in the Oregon portion of the Goose Lake Basin. Data were collected by the U.S. Geological Survey (USGS) and Oregon State University (OSU) to monitor prey communities in the Basin, and to relate observed prey abundances to specific habitat features. Sampling was conducted based on previous survey efforts, using a stratified random subset of sites surveyed by ODFW in 2007 and OSU in 2022-2024. Macroinvertebrate sample processing was carried out by R. Roper and R. Ponce Velez at OSU and diet samples were processed by Aquatic Biology Associates in Corvallis, Oregon. These data are part of a broader, comprehensive monitoring effort in the Basin.